Magnetic block array for patterned magnetic media

Koike, Kazuyuki; Matsuyama, Hideo; Hirayama, Yoshiyuki; Tanahashi, Kiwamu; Kanemura, Takashi; Kitakami, Osamu; Shimada, Yutaka
February 2001
Applied Physics Letters;2/5/2001, Vol. 78 Issue 6, p784
Academic Journal
We have fabricated a magnetic rectangular block array of 130 Gblock/in.2 with a block-size-to-period ratio of 0.85 by using focused ion beam lithography. Each block has perpendicular crystal magnetic anisotropy and a single domain structure. Its advantage as patterned media is discussed in conjunction with thermal stability in recorded magnetization, reading signal, and area density. © 2001 American Institute of Physics.


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